can you help identify a stepper motor?

Can anybody help identify the following?

I have two stepper motors pulled from an unknown brand of a plotter
printer, this printer was huge, capable of at least 30"
paper . I have searched the internet and found the company of one of
them but recieved NO reply from my email.....

Both motors are 2.+ inches in diameter and vary in length but are both
approx. 3 3/4 inches. [NEMA 23]?????

They both are connected with 10 wire ribbon harness PLUS have what
must be negative and positive DC connectors <both have a very obvious
"+" sign by the factory red screw holding the wire connector lug onto
the motor.>

The motors mount on the shaft end of the motor which have pressed on
fine toothed gears, of two different diameters.

Both motors were made or sold in Chatsworth, CA 91311.

One is marked Universal Magnetics, Inc. an "NMB company" It has the
following identifing numbers: 10211-301-000 on the
first line and ME2102617 in one space and 8523 following that.

My other motor is labeled on the BODY with: Hathaway p/n 7925109 REV
B003, a customer p/n which is seven numbers or
letters long but unreadable... then REV 4A and a small + sign near the
RED painted wire connector lug on the motor.

On its round cap covering the circuit board for the servo stuff it is
labeled: Computer Optical Products, Inc and again the
address of Chatsworth, CA 91311.

Can anybody provide even approximent values for these motors???? Can
they be powered by the DC connectors without harming the stepper
circuits??? How can I identify which wires in the ribbon are "used"
for the servo information.

I would like to be able to use these for x axis on my TAIG lathe or
maybe for driving a home built plotter/engraver.

would these be "good" for a first time project in stepper motor work
or should i go with something less exotic like steppers from a dot
matrix printer?????

thanks in advance,

phil jaster